Malicious PDF — malware analysis report

Heuristics 4

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://ggtraff.ru/pify?keyword=google+sites+66+ez In PDF document text

  • https://site-1040513.mozfiles.com/files/1040513/82673119723.pdfIn PDF document text
  • https://site-1036760.mozfiles.com/files/1036760/88148388220.pdfIn PDF document text
  • https://site-1036971.mozfiles.com/files/1036971/sitipabezifidosujewokowov.pdfIn PDF document text
  • https://site-1039351.mozfiles.com/files/1039351/xugodutinevijumogipa.pdfIn PDF document text
  • https://site-1041285.mozfiles.com/files/1041285/fesomoroga.pdfIn PDF document text
  • https://site-1036835.mozfiles.com/files/1036835/tudulobefujazur.pdfIn PDF document text
  • http://dekaf.cvillehomeimprovements.com/uploads/1/3/2/8/132814930/bifoxup.pdfIn PDF document text
  • http://files.spectrumpilotservices.com/uploads/1/3/1/8/131871786/rixerovupo.pdfIn PDF document text
  • http://files.kinshipmerch.com/uploads/1/3/1/4/131437683/vuwevomavovapegiju.pdfIn PDF document text
  • http://tibajodu.glensheppard.com/uploads/1/3/0/8/130814423/sukinovivo.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/6a61c7e4-aa94-4011-a2af-b5729205c474/jesejexa.pdfIn PDF document text
  • https://www.scoop.it/.../4095307543/2018/03/10/tIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • https://savannah.gnu.org/projects/freefont/In PDF document text
  • http://www.gnu.org/licenses/In PDF document text
  • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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